Work reducing and pressure applying
CA 1070532 A · Owner: Asko · Inventors: Dempsey, Martin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Application to, Martin J. Dempsey, 3001 Hillcrest Road Bethel Park, Pennsylvania 15102, Title WORK REDUCING AND PRESSURE APPLYING, Abstract of the Disclosure Reduction of bars or rods with reducing rolls of large diameter on arbors in which lateral pressure is applied to the reducing rolls to suppress rotation of the rolls relative to the arbor. The pressure is applied by an annular shoe on the arbor. The shoe and an annular fluid activator on the arbor form, between their facing surfaces a sealed, annular chamber and also an annular gap. The gap is accessible through the peripheries of the activator and shoe. Axial movement of the activator outwardly of the rolls is restricted by a nut on …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.